1 /* 2 * Copyright (c) 2021-2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef DISPLAYMGR_DISPLAY_MGR_SERVICE_H 17 #define DISPLAYMGR_DISPLAY_MGR_SERVICE_H 18 19 #include <atomic> 20 #include <cstdint> 21 #include <string> 22 #include <vector> 23 #include <map> 24 #include <memory> 25 #include <functional> 26 #include <sys/types.h> 27 #include "delayed_sp_singleton.h" 28 #include "refbase.h" 29 #include "event_runner.h" 30 #include "iremote_object.h" 31 #ifdef ENABLE_SENSOR_PART 32 #include "sensor_agent_type.h" 33 #endif 34 #include "idisplay_power_callback.h" 35 #include "display_power_info.h" 36 #include "display_common.h" 37 #include "display_power_mgr_stub.h" 38 #include "screen_controller.h" 39 #include "brightness_manager.h" 40 #include "ffrt_utils.h" 41 42 namespace OHOS { 43 namespace DisplayPowerMgr { 44 class DisplayPowerMgrService : public DisplayPowerMgrStub { 45 public: 46 virtual ~DisplayPowerMgrService() = default; 47 virtual bool SetDisplayState(uint32_t id, DisplayState state, uint32_t reason) override; 48 virtual DisplayState GetDisplayState(uint32_t id) override; 49 virtual std::vector<uint32_t> GetDisplayIds() override; 50 virtual uint32_t GetMainDisplayId() override; 51 virtual bool SetBrightness(uint32_t value, uint32_t displayId, bool continuous = false) override; 52 virtual bool DiscountBrightness(double discount, uint32_t displayId) override; 53 virtual bool OverrideBrightness(uint32_t value, uint32_t displayId) override; 54 virtual bool OverrideDisplayOffDelay(uint32_t delayMs) override; 55 virtual bool RestoreBrightness(uint32_t displayId) override; 56 virtual uint32_t GetBrightness(uint32_t displayId) override; 57 virtual uint32_t GetDefaultBrightness() override; 58 virtual uint32_t GetMaxBrightness() override; 59 virtual uint32_t GetMinBrightness() override; 60 virtual bool AdjustBrightness(uint32_t id, int32_t value, uint32_t duration) override; 61 virtual bool AutoAdjustBrightness(bool enable) override; 62 virtual bool IsAutoAdjustBrightness() override; 63 virtual bool RegisterCallback(sptr<IDisplayPowerCallback> callback) override; 64 virtual bool BoostBrightness(int32_t timeoutMs, uint32_t displayId) override; 65 virtual bool CancelBoostBrightness(uint32_t displayId) override; 66 virtual uint32_t GetDeviceBrightness(uint32_t displayId) override; 67 virtual bool SetCoordinated(bool coordinated, uint32_t displayId) override; 68 virtual int32_t Dump(int32_t fd, const std::vector<std::u16string>& args) override; 69 virtual DisplayErrors GetError() override; 70 void NotifyStateChangeCallback(uint32_t displayId, DisplayState state, uint32_t reason); 71 void Init(); 72 void Deinit(); 73 void Reset(); 74 void ClearOffset(); 75 void SetScreenOnBrightness(); 76 static uint32_t GetSafeBrightness(uint32_t value); 77 static double GetSafeDiscount(double discount, uint32_t brightness); 78 79 private: 80 class CallbackDeathRecipient : public IRemoteObject::DeathRecipient { 81 public: 82 CallbackDeathRecipient() = default; 83 virtual ~CallbackDeathRecipient() = default; 84 virtual void OnRemoteDied(const wptr<IRemoteObject>& remote); 85 private: 86 std::mutex callbackMutex_; 87 }; 88 89 #ifdef ENABLE_SENSOR_PART 90 static void AmbientLightCallback(SensorEvent* event); 91 void InitSensors(); 92 void ActivateAmbientSensor(); 93 void DeactivateAmbientSensor(); 94 bool ambientSensorEnabled_ {false}; 95 SensorUser sensorUser_ {}; 96 #endif 97 bool supportLightSensor_ {false}; 98 99 static const uint32_t AUTO_ADJUST_BRIGHTNESS_STRIDE = 1; 100 static const uint32_t SAMPLING_RATE = 100000000; 101 static const int32_t BRIGHTNESS_CHANGE_MIN = 2; 102 static const int32_t LUX_TO_NIT_SQRT_RADIO = 5; 103 static const time_t LUX_STABLE_TIME = 1; 104 static constexpr float LUX_CHANGE_RATE_THRESHOLD = 2; 105 static constexpr float LUX_CHANGE_STABLE_MIN = 10.0; 106 static const int32_t NIT_MIN = 2; 107 static const int32_t NIT_MAX = 450; 108 static const uint32_t BRIGHTNESS_OFF = 0; 109 static const uint32_t BRIGHTNESS_MIN; 110 static const uint32_t BRIGHTNESS_DEFAULT; 111 static const uint32_t BRIGHTNESS_MAX; 112 static const uint32_t DELAY_TIME_UNSET = 0; 113 static constexpr const double DISCOUNT_MIN = 0.01; 114 static constexpr const double DISCOUNT_MAX = 1.00; 115 116 friend DelayedSpSingleton<DisplayPowerMgrService>; 117 118 DisplayPowerMgrService(); 119 bool IsChangedLux(float scalar); 120 bool CalculateBrightness(float scalar, int32_t& brightness, int32_t& change); 121 int32_t GetBrightnessFromLightScalar(float scalar); 122 void DumpDisplayInfo(std::string& result); 123 static void RegisterBootCompletedCallback(); 124 static void SetBootCompletedBrightness(); 125 static void SetBootCompletedAutoBrightness(); 126 static void RegisterSettingObservers(); 127 static void UnregisterSettingObservers(); 128 static void RegisterSettingAutoBrightnessObserver(); 129 static void UnregisterSettingAutoBrightnessObserver(); 130 static void AutoBrightnessSettingUpdateFunc(const std::string& key); 131 static void SetSettingAutoBrightness(bool enable); 132 static bool GetSettingAutoBrightness(const std::string& key = SETTING_AUTO_ADJUST_BRIGHTNESS_KEY); 133 void ScreenOffDelay(uint32_t id, DisplayState state, uint32_t reason); 134 135 static constexpr const char* SETTING_AUTO_ADJUST_BRIGHTNESS_KEY {"settings.display.auto_screen_brightness"}; 136 std::map<uint64_t, std::shared_ptr<ScreenController>> controllerMap_; 137 bool autoBrightness_ {false}; 138 sptr<IDisplayPowerCallback> callback_; 139 sptr<CallbackDeathRecipient> cbDeathRecipient_; 140 141 DisplayErrors lastError_ {DisplayErrors::ERR_OK}; 142 time_t lastLuxTime_ {0}; 143 float lastLux_ {0}; 144 bool luxChanged_ {false}; 145 std::mutex mutex_; 146 static std::atomic_bool isBootCompleted_; 147 uint32_t displayOffDelayMs_ {0}; 148 bool isDisplayDelayOff_ = false; 149 bool setDisplayStateRet_ = true; 150 uint32_t displayId_ {0}; 151 DisplayState displayState_ {DisplayState::DISPLAY_UNKNOWN}; 152 DisplayState tempState_ {DisplayState::DISPLAY_UNKNOWN}; 153 uint32_t displayReason_ {0}; 154 std::shared_ptr<PowerMgr::FFRTQueue> queue_; 155 }; 156 } // namespace DisplayPowerMgr 157 } // namespace OHOS 158 #endif // DISPLAYMGR_DISPLAY_MGR_SERVICE_H 159